CVE-2025-69277

Published: Dec 31, 2025Modified: Jun 17, 2026Deferred

4.5

Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Exploitability: 1.4 / Impact: 2.7

Source: MITRE (Secondary)

Description

libsodium before ad3004e, in atypical use cases involving certain custom cryptography or untrusted data to crypto_core_ed25519_is_valid_point, mishandles checks for whether an elliptic curve point is valid because it sometimes allows points that aren't in the main cryptographic group.

Related CWEs

Incomplete List of Disallowed Inputs

The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete, leading to resultant weaknesses.

References (8)

https://00f.net/2025/12/30/libsodium-vulnerability/

Source: cve@mitre.org

https://github.com/jedisct1/libsodium/commit/ad3004ec8731730e93fcfbbc824e67eadc1c1bae

Source: cve@mitre.org

https://github.com/pyca/pynacl/commit/96314884d88d1089ff5f336dba61d7abbcddbbf7

Source: cve@mitre.org

https://github.com/pyca/pynacl/commit/ecf41f55a3d8f1e10ce89c61c4b4d67f3f4467cf

Source: cve@mitre.org

https://github.com/pyca/pynacl/issues/920

Source: cve@mitre.org

https://ianix.com/pub/ed25519-deployment.html

Source: cve@mitre.org

https://news.ycombinator.com/item?id=46435614

Source: cve@mitre.org

https://lists.debian.org/debian-lts-announce/2026/01/msg00004.html

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

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